from my_utils import file_util
from my_utils import str_util

s = "你是年少的欢喜"
print(str_util.str_reverse(s))
print(str_util.substr(s, 2, 4))

name = "D:/Code/Python_code/python_learning/py_stage_1/text.txt"
file_util.print_file_info("text.txt")
file_util.print_file_info(name)
file_util.append_to_file(name, "I am good people!")
file_util.print_file_info(name)
